I was wondering if someone could explain to me how you go about putting a signal into an amplifier and checking it on the output side with an oscilloscope. I have an amp with a fuzzy channel and I have read that you can input a signal to the amp, and then compare the two channels output for differences. How is this done? I am obviously a newb but I want to learn anything I can about amplifier repair, TV repair, whatever.
Testing Amplifier Output
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Re: Testing Amplifier Output
I'm guessing something like this could be used ?
http://www.ebay.co.uk/itm/New-DDS-Fu...item417a5aadb2Comment
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Re: Testing Amplifier Output
You can use your PC for tone generator, it's free:
http://onlinetonegenerator.com/Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: Testing Amplifier Output
Okay, I have a WAVETEK sweep generator Model 22 that I had given to me and a Phillips PM3217 Oscilloscope. Both units are a little older but still work. What I want to know is how to hook it up, and where to set it and what I am actually looking for once it is working? Is the amp plugged in or am I doing this on a cold circuit.
I also have a PICOSCOPE PC based oscilloscope that I can use as well. Patience please, I will get this. Like a spongeComment
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Re: Testing Amplifier Output
Make and model of the amplifier you are working on? Upload pictures of the amp also.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: Testing Amplifier Output
It is a QSC EX1600 amplifier. The schematic for it can be found here:
I do not have the amplifier open yet. Right now this is a general question. I will send pics as I go.Comment
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by flibidyI have here a Magnum IA.100 which belongs to my parents.
The unit powers on & when the relay kicks in, you get a pop from the speakers (this might sound weird but is usual behavior for this amp). However, you get nothing coming through it from any of the inputs & no pops and crackls from any of the controls.
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by Francesc V.Hi:
I bought this amplifier from the 70s to try to repair it. So far it has no output sound, just noise. You can volume it up and down.
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